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1) In the title of the [[United States Marine Corps]], ''Corps'' is used as a service-branch designator, in much the same way as ''Force'' and ''Guard'' are used for the [[US Air Force]] and [[US Coast Guard]].
2) The [[US Army]] (all [[Structure of the United States Army#Active and Reservereserve Componentscomponents|components]]; [[Regular Army (United States)|Regular Army]], [[United States Army Reserve|Army Reserve]], and [[Army National Guard]]) uses administrative ''corps'', also known as [[Structure of the United States Army#Branches and Functionalfunctional Areasareas|''army branches'']], to group personnel with a common function. These include the [[U.S. Army Acquisition Support Center#Overview|Acquisition Corps]], [[United States Army Adjutant General's Corps|Adjutant General's Corps]], [[Chaplain Corps (United States Army)|Chaplain Corps]], [[Chemical Corps]], [[United States Army Civil Affairs and Psychological Operations Command#Civil Affairs Units|Civil Affairs Corps]], [[Cyberwarfare in the United States#Army|Cyber Corps]], [[Dental Corps]]*, [[United States Army Corps of Engineers|Corps of Engineers]], [[Finance Corps]], [[Judge Advocate General's Corps]], [[Logistics Corps]], [[Medical Corps]]*, [[Medical Service Corps]]*, [[Medical Specialist Corps]]*, [[Military Intelligence Corps]], [[Military Police Corps (United States)|Military Police Corps]], [[Nurse Corps]]*, [[United States Army Ordnance Corps|Ordnance Corps]], [[Psychological Operations (United States)#Army|Psychological Operations Corps]], [[Quartermaster Corps]], [[Signal Corps]], [[Transportation Corps]], and [[United States Army Veterinary Corps|Veterinary Corps]].* Each of these corps is also considered a [[United States Army Regimental System#Combat Support (CS), Combat Service Support (CSS), and Special Branches|''regiment'']] for purposes of: "... affiliation, ... loyalty and commitment, ... sense of belonging, ... unit esprit, and ... war fighting ethos." However, these regiments have no tactical function. The six corps (annotated by an asterisk above after each applicable corps' name) of the [[Army Medical Department (United States)|Army Medical Department]] (AMEDD) are included in the AMEDD Regiment
.<ref>Army Regulation 600-82: ''The U.S. Army Regimental System'' Chapter 2: Management of the U.S. Army Regimental System, 2–2. USARS purpose, page 2. http://www.17thinfantry.org/documents/dmor/AR%20600-82%20US%20ARMY%20Regimental%20System.pdf {{Webarchive|url=https://web.archive.org/web/20230109052453/http://www.17thinfantry.org/documents/dmor/AR%20600-82%20US%20ARMY%20Regimental%20System.pdf |date=9 January 2023 }}. retrieved 14 December 2016.</ref>
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